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app.py

@@ -76,6 +76,29 @@ if patch.exists():
 sys.path.insert(0, str(SAM3D_PATH))
 sys.path.insert(0, str(SAM3D_PATH / "notebook"))
 
+# --- Monkey-patch: inject depth_edge into utils3d.numpy ---
+# utils3d package lacks depth_edge in newer versions; SAM3D needs it for layout post-optimization
+try:
+    import utils3d.numpy as _u3d_np
+    if not hasattr(_u3d_np, 'depth_edge'):
+        def _depth_edge(depth, rtol=0.03, mask=None):
+            from scipy.ndimage import sobel
+            import numpy as _np
+            d = _np.where(mask, depth, 0.0) if mask is not None else depth.copy()
+            gx = sobel(d, axis=1)
+            gy = sobel(d, axis=0)
+            grad = _np.sqrt(gx**2 + gy**2)
+            denom = _np.abs(d)
+            denom[denom < 1e-6] = 1e-6
+            edge = (grad / denom) > rtol
+            if mask is not None:
+                edge = edge & mask
+            return edge
+        _u3d_np.depth_edge = _depth_edge
+        print("Injected depth_edge into utils3d.numpy")
+except Exception as e:
+    print(f"depth_edge patch skipped: {e}")
+
 # --- Pre-download checkpoints ---
 print("Downloading SAM3D checkpoints...")
 CKPT_DIR = snapshot_download(repo_id="facebook/sam-3d-objects",